Oil-burner.



J. H. FONES.

OIL BURNER.

APPLICATION FILED JUNE 29, 1908.

Patented Sept. 14, 1909.

INVENTOR, J m u, 4 90m, BY

9 7 a, ATTORNEY.

WITNESSES:

UNTTE l:

JOHN H. JONES, OF OAKLAND, CALIFORNIA.

OIL-BURNER.

To all whom it may concern:

Be it known that 1, JOHN H. FoNEs, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented new and useful Improvements in Oil-Burners, of which the following is a specification.

The present invention relates to improvements in oil burners especially adapted for use for domestic purposes, the object of the invention being to provide a burner of this character, in which the oil shall be perfectly vaporized before combustion, so as to burn without any smoke or smell, and by which a comparatively low grade oil such as distillate, can be burned, thereby greatly economizing in the cost for fuel.

In the accompanying drawing, Figure 1 is a side view of the burner and of the base plate in position; Fig. 2 is a cross sectional view of the same; Fig. 3 is a horizontal section on the line 3-3 of Fig. 2; Fig. 4 is an enlarged vertical section of the lower part of the burner.

Referring to the drawing, 1 indicates a base plate, which, in use in a domestic stove, is substituted for the grate in the fire box. From said plate 1 a pan 2 depends, so as to leave air spaces 8, through which air can pass to the burner. Said pan is formed with a central sleeve 4 through which passes the oil pipe 5 threaded at the bottom, as shown at (3, for connecting with an oil supply pipe, not shown. Said pipe connects at its top with the central vertical aperture 7 of a generator 8, and is formed on the outside with a comparatively deep screw thread or worm 9. Surrounding said generator is a heater 10 which rests upon the flange or base 11 of the generator, and is formed on the inside with inwardly extending lugs 12 which abut against the outer surface of the worm 9 and center the heater upon the generator. It is also formed at its lower edge with inwardly extending lugs 13 which fit closely around a circular shoulder 14 formed on the bottom of the generator. Said lower lugs 13, being spaced from one another, allow the vapor to pass out between them. However, said vapor cannot escape from the interior of the heater except under considerable pressure, by reason of the fact that the bottom edge of the heater is formed with a ground surface as, is likewise the upper surface of the base of the generator, and these smooth Specification of Letters Patent. Patented Sept. 1411, 1999.

Application filed June 29, 1908.

Serial No. 441,041.

surfaces, fitting tightly together, normally prevent the escape of the vapor generated from the oil. It is only when the vapor has been generated in suflicient quantity, and at such a high temperature, as to create sui'licient pressure to lift the heater, that the vapor can escape from between the lower edge of the heater and the upper edge or surface of the base of the generator. The purpose of the upper and lower lugs 12, 13, fitting closely around the worm 9 and shoulder 1%, is now apparent, namely, to insure that, when the heater is raised by the pressure of the confined vapor, it is not tilted to one side but is raised uniformly from the seat at all points, so that the vapor escapes uniformly and the combustion is uniform throughout. The lower lugs 13 also perform another important function, since by turning the heater upon the generator said lugs can be used as scrapers to scrape off any sediments which may have been deposited upon the upper surface of the generator base. I

The generator is formed with a large number of upper and lower vertical ribs 15, 16, in planes through the axis of the heater. The main body of said heater bulges or flares outward at the top as shown at. 17, between said upper and lower vertical ribs, to form an outwardly flaring spreading surface, the object of which is to spread the flames passing upward around the heater. Said heater is also formed at the extreme top with an apertured lug 18 by which it can be conveniently raised. The thread of the generator dips inwardly, so as to cause the oil to run along the thread at the interior portion thereof, whereby there is no tendency of the oil to drop off the edges of the thread. In like manner the upper surface of the circular flange or shoulder dips or is concaved, as is likewise the upper surface of the base of the generator. The bottom of the thread terminates at a considerable height above the shoulder or flange 14, and the terminal portion of the thread tapers off gradually to the main body or core of the generator, so as to prevent the oil dropping from said thread on to the outside of the circular flange or shoulder 14. The bottom surface of the base of the generator is also undercutor concaved to prevent the oil running down first over the circumferential surface of said base, and then along the underthe burner has been sufiiciently heated. The

heater, being heated by the flames passing around the same'and having a large heating surface on account of the vertical ribs, vaporizes the oil flowing down along the worm or thread, and this vaporization continues until the pressure of the vapor is sufiicient to raise the heater from its seat, whereupon the oil vapor escapes, and burns around the heater, maintaining the latter highly heated and generating vapor from the oil as fast as supplied.

I claim 1. .111 combination, a generator having a circular base with a smooth upper surface, a central upwardly extending conduit for the oil open at the top,'a helical. descending conduit for the oil around the central conduit, and a heater surrounding the generator, and openonly at the bottom, the lower edge of the bottom of the heater resting upon the upper surface of the base of the generator, and being smooth to make a tight fit to prevent the escape of a fluid thereunder except when the heater is lifted, the

interior of the heater being enlarged at the top to form a large lifting surface to permit the heater to be raised from its'seat by gaseous pressure, substantially as described.

2. In combination, a generator having a circular base with a smooth upper surface, a central upwardly extending conduit for the oil open at the top, a helical descending conduit for the oil around the central eonator, and open only at the bottom, the lower (1 edge upon the upper surface of the base of the generator, and being smooth to make a tight fit to prevent the escape of a fluid thereunder except when the heater is lifted, said heater being formed at the top into a lifting chamber to lift the heater by gaseous pressure, therewithin, and provided with means, located below said lifting chamber, and engaging the generator, to prevent the heater being tilted when lifted, substantially as described.

3. In C(JlIlbiDfltlOH, a generator having a circular base with a smooth upper surface, a' central upwardly extending conduit for the oil open at the top, a helical descending conduit for the oil around the central conduit, and a heater surrounding the generator, and open only at the bottom, the lower edge of the bottom of the heater resting upon the upper surface'of the base of the generator,

of the bottom of the heater resting and being smooth to niakeatightfit to prevent the escape' of a fluid thereunder except when the heater is lifted; saidheater being formed at the top into a lifting'chamber tolift the heater by gaseous pressure therewithin, and being also formed with upper and lower guides to guide the heater in a direct vertical movement when so lifted, substantially as described. 7

a. In combination, a generator having a seat and extending above said seat, means for supplying oil and discharging the same upon the outer surface of the generator at a point above said seat, and a heater entirely surrounding said generator and open only at the bottom, the bottom edge of said generator resting upon said seat with a fit sufficiently tight to confine Oll vapor generated within said heater until said'vapor has obtained a pressure sufficient to raise the heater from its seat, said heater being free to rise from its seat, when subjected to such pressure, substai'itially as described.

In combination, a generator having a seat and extending above said seat, means for supplying oil and discharging the same upon the outer surface of the generator at a point above said seat, a heater entirely surrounding said generator and open only at the bot. tom, the bottom edge of said generator resting upon said seat with a fit sufficiently tight to confine oil vapor generated within said heater until said Vapor has obtained a pressure sufficient to raise the heater from its seat, said heater being free to rise from its seat, when subjected to such pressure, and means for guiding said heater when so lifted so that it may be moved from the seat uniformly at all points, substantially as described. Y

6. In combination, a generator, means for supplying oil thereto, a heater surrounding" In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOHN H. FONES."

\Vitne'sses v FRANCIS M. \VnioI-rr, H. B. DENSON. 

